A Geoscience Digital Image Library

TitleThin section of biotite granite
DescriptionThis is a thin section view of biotite granite (in plain polarized light). The dark and yellow-tan minerals are biotite. The off-white (colorless) lighter areas are plagioclase. The light pink area to the right of the large biotite in the lower left of the photo is muscovite.
LithostratigraphyWoodbury Granite
LocationUSA ▹ Vermont ▹ Washington. Near Barre.
PhotographerDarla Sondrol. 2001-06-29.
CollectionWard’s Collection of Classic North American Rocks #1.
Key wordsbiotite, granite, thin section
Tech details839 KB. Thin section. Nikon FDX-35.
GeoDIL number956